The real cost of the Olympics and other mega-sporting events is much higher than host bids would have us believe, according to a new study exploring the impacts of the 2015 Pan Am Games in Toronto. That’s because it takes additional investments to keep newly built venues in use after the event.

Teenagers who try e-cigarettes double their risk for smoking tobacco cigarettes, according to a new study.

The study — from the University of Waterloo and the Wake Forest School of Medicine — found that students in grades 7 to 12 who tried an e-cigarette are 2.16 times more likely to be susceptible to cigarette smoking.

Considerable exposure to sugary drinks combined with a lack of water fountains in high schools are likely important contributors to increased consumption of sugar sweetened beverages, a new study from the University of Waterloo has found.